#+title: Foster's Firefox User.js

* What is a =user.js= File?

A =user.js= is a configuration file to control Firefox settings. Refer to the [[https://kb.mozillazine.org/User.js_file][User.js entry from the MozillaZine Knowledge Base]] for more info.

* About

This is my personal =user.js= for configuring Firefox and is based on [[https://github.com/arkenfox/user.js][ArkenFox's user.js]]. The goal is to enhance privacy by preventing unsolicited requests made by Firefox. To achieve this, many settings related to telemetry, studies, geolocation, and experiments are disabled.

Only a subset of the configurations from Arkenfox are implemented and many of the experimental options are excluded. As a result, this version should not cause any breakages. If you are looking for a more comprehensive privacy configuration, then I suggest going with the Arkenfox version instead.

* Installation

Before you begin, I suggest making a backup of your entire Firefox profile folder. Refer to [[https://support.mozilla.org/en-US/kb/profiles-where-thunderbird-stores-user-data][Mozilla's Profiles support article]] on how to find the location of the profile folder.

Copy the =user.js= file in the root directory of this repo to your profile folder then restart Firefox.

* License

[[https://code.fosterhangdaan.com/foster/firefox-userjs/src/branch/trunk/LICENSE.txt][MIT License]]